Female and male flower bud differentiation of Jatropha curcas L. induced by gibberellin

doi:10.3969/j.issn.1000-2006.2016.06.027

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2016, Vol. 59 ›› Issue (06): 174-REF!.doi: 10.3969/j.issn.1000-2006.2016.06.027

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Female and male flower bud differentiation of Jatropha curcas L. induced by gibberellin

HUI Wenkai¹,YANG Shuyi²,CHEN Hanbin²,LI Shuqi²,PENG Changcao²,WU Guojiang³,CHEN Xiaoyang^2*

Online:2016-12-18 Published:2016-12-18

Abstract

Abstract: The purpose of this study was to study the effects of exogenous GA₃ on flower bud differentiation of Jatropha curcas and screen the optimum concentration of gibberellin to increase the ratio of female flowers. We used three clones of J. curcas as trial materials, investigated and analyzed 14 flowers after spraying different concentrations of GA₃ to inflorescence buds. The GA₃ could promote the development of female flower, all the male and female flowers enlarged and the total number and proportion of female flowers were higher than that of the control, but inflorescence branches did not increase. The effect of 40 mg/L GA₃ was optimum for the development of female flowers. However, average fruits per inflorescence, fruit weight, seed rate, 100-seeds weight and the seed oil content were significantly lower than that of the control after treatment. In this trial, with the increasing of GA₃ concentration, the inflorescence branch would be withered, until 1 200 mg/L treatment, all flowers withered and no fruits were harvested. In conclusion, the effect of GA₃ was relatively stable, and 40 mg/L GA₃ was optimum for the development of female flowers.

CLC Number:

Q945.6

HUI Wenkai,YANG Shuyi,CHEN Hanbin,LI Shuqi,PENG Changcao,WU Guojiang,CHEN Xiaoyang. Female and male flower bud differentiation of Jatropha curcas L. induced by gibberellin[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2016, 59(06): 174-REF!.

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Female and male flower bud differentiation of Jatropha curcas L. induced by gibberellin

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